VSSAF56HM3_A/I Equivalent & Substitute Parts

Part Overview

The VSSAF56HM3_A/I is a Schottky rectifier diode manufactured by Vishay General Semiconductor - Diodes Division, classified within the TMBS® SlimSMA™ series. This surface mount diode operates at 60 V DC reverse voltage with 5 A average rectified current capacity and is packaged in the DO-221AC (SlimSMA) form factor. The device is actively produced and carries automotive-grade qualification under AEC-Q101 standards. Equivalent and substitute parts are identified to support procurement flexibility, inventory management, and supply chain continuity for applications requiring this specific electrical and mechanical specification.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	60	V
Current - Average Rectified (Io)	5	A
Voltage - Forward (Vf) (Max) @ If	620 mV @ 5 A	mV
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)	ns
Current - Reverse Leakage @ Vr	400	µA @ 60 V
Capacitance @ Vr, F	540	pF @ 4V, 1MHz
Package / Case	DO-221AC, SMA Flat Leads	—
Operating Temperature - Junction	-40 to 150	°C
Technology	Schottky	—
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitution of the VSSAF56HM3_A/I is determined by electrical and mechanical parameter equivalence. All substitute parts maintain identical specifications across the following critical parameters:

Voltage - DC Reverse (Vr) (Max): 60 V
Current - Average Rectified (Io): 5 A
Voltage - Forward (Vf) (Max) @ If: 620 mV @ 5 A
Speed: Fast Recovery ≤ 500ns, > 200mA (Io)
Current - Reverse Leakage @ Vr: 400 µA @ 60 V
Capacitance @ Vr, F: 540 pF @ 4V, 1MHz
Package / Case: DO-221AC, SMA Flat Leads
Operating Temperature - Junction: -40°C to 150°C
Technology: Schottky
Series: TMBS®, SlimSMA™
RoHS Status: ROHS3 Compliant
Moisture Sensitivity Level (MSL): 1 (Unlimited)

Substitute parts differ only in packaging format (Tape & Reel versus Cut Tape & Digi-Reel®) and inventory availability. All substitute parts are manufactured by Vishay General Semiconductor - Diodes Division and share the same base product number SAF56.

Parameter Comparison

Part Number	Vr (Max)	Io	Vf (Max) @ If	Speed	Ir @ Vr	Capacitance @ Vr, F	Package	Temp Range	Packaging Format	Automotive Grade
VSSAF56HM3_A/I	60 V	5 A	620 mV @ 5 A	≤ 500ns	400 µA @ 60 V	540 pF @ 4V, 1MHz	DO-221AC	-40 to 150°C	Tape & Reel (TR)	Yes (AEC-Q101)
VSSAF56-M3/6A	60 V	5 A	620 mV @ 5 A	≤ 500ns	400 µA @ 60 V	540 pF @ 4V, 1MHz	DO-221AC	-40 to 150°C	Cut Tape (CT) & Digi-Reel®	No
VSSAF56-M3/6B	60 V	5 A	620 mV @ 5 A	≤ 500ns	400 µA @ 60 V	540 pF @ 4V, 1MHz	DO-221AC	-40 to 150°C	Tape & Reel (TR)	No
VSSAF56HM3_A/H	60 V	5 A	620 mV @ 5 A	≤ 500ns	400 µA @ 60 V	540 pF @ 4V, 1MHz	DO-221AC	-40 to 150°C	Tape & Reel (TR)	Yes (AEC-Q101)

Engineering Selection Recommendations

All substitute parts listed are active products manufactured by Vishay General Semiconductor - Diodes Division and are electrically and mechanically equivalent to the VSSAF56HM3_A/I.

VSSAF56HM3_A/H is the primary substitute for applications requiring automotive-grade qualification. This part carries AEC-Q101 certification identical to the main part and is supplied in Tape & Reel packaging. Current inventory is 100,100 pieces.

VSSAF56-M3/6B is functionally equivalent but does not carry automotive-grade qualification. It is supplied in Tape & Reel packaging with 12,696 pieces in inventory.

VSSAF56-M3/6A is functionally equivalent but does not carry automotive-grade qualification. It is supplied in Cut Tape & Digi-Reel® packaging with 27,407 pieces in inventory. This option is suitable for applications where individual component handling or smaller quantity requirements are specified.

Selection between substitute parts should be based on packaging format requirements (Tape & Reel versus Cut Tape & Digi-Reel®) and automotive qualification necessity for the end application.

Frequently Asked Questions (FAQ)

Q: Are all substitute parts electrically identical to the VSSAF56HM3_A/I?

A: Yes. All substitute parts maintain identical electrical specifications including voltage rating (60 V), current capacity (5 A), forward voltage drop (620 mV @ 5 A), reverse leakage current (400 µA @ 60 V), and capacitance (540 pF @ 4V, 1MHz).

Q: What is the difference between VSSAF56HM3_A/I and VSSAF56HM3_A/H?

A: Both parts are automotive-grade (AEC-Q101 qualified) Schottky diodes with identical electrical and mechanical specifications. The difference is in the manufacturing lot or date code designation. Both are supplied in Tape & Reel packaging.

Q: Can VSSAF56-M3/6A be used in automotive applications?

A: VSSAF56-M3/6A does not carry automotive-grade qualification (AEC-Q101). It is suitable for non-automotive applications where automotive qualification is not required. For automotive applications, use VSSAF56HM3_A/I or VSSAF56HM3_A/H.

Q: What is the difference between Tape & Reel and Cut Tape & Digi-Reel® packaging?

A: Tape & Reel (TR) packaging supplies components on continuous tape wound on a reel, suitable for high-volume automated assembly. Cut Tape (CT) & Digi-Reel® packaging supplies components on cut tape segments, suitable for lower-volume applications or manual assembly processes. Electrical performance is identical.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All substitute parts listed are RoHS3 compliant with Moisture Sensitivity Level (MSL) 1 (Unlimited).

Q: Can I use VSSAF56-M3/6B as a direct replacement for VSSAF56HM3_A/I?

A: VSSAF56-M3/6B is electrically and mechanically equivalent and can be used as a direct replacement in non-automotive applications. For automotive applications requiring AEC-Q101 qualification, use VSSAF56HM3_A/I or VSSAF56HM3_A/H.

Q: What is the base product number for all these parts?

A: The base product number is SAF56. All listed parts are variants of this base product within the TMBS® SlimSMA™ series.

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